[Steve C.]

Does the purchase include valve train pieces ?

If not, some considerations:

With the larger diameter and longer valves, taller valve springs are required, this all adds to valvetrain mass. Keep this in mind with spring selection.

Overall height is taller and longer push rods are required. Upgrade to a thicker wall section.

The obvious, if the shaft rocker system utilizes off-set intake rocker arms you are limited to solid roller lifters.

You can presume that 400 cfm rating is at high valve lift. Related it also brings up the question of the intake port size and intake manifold choice and any potential intake port matching issues.
As cast the port opening is about 2.300" tall.

Consider the taller overall height if hood clearance is an issue.


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